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Finding the Fourth Proportional to 350,179.44, 524,478.60 and 209,641.20

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Solution

The fourth proportional to 350,179.44, 524,478.60 and 209,641.20 is: 313,988.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,179.44 : 524,478.60 = 209,641.20 : x
  2. Step 2: Convert to fraction form
    350,179.44/524,478.60 = 209,641.20/x
  3. Step 3: Cross multiply
    350,179.44x = 524,478.60 × 209,641.20
  4. Step 4: Simplify right side
    350,179.44x = 109,952,323,078.32
  5. Step 5: Solve for x
    x = 109,952,323,078.32/350,179.44
  6. Step 6: Final answer
    x = 313,988.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.